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參數(shù)資料
| 型號： | AD1895 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V/5 V Digital Audio Receiver,External APLL(數(shù)字音頻接收器) |
| 中文描述： | 3伏/ 5 V數(shù)字音頻接收器，外部美集（數(shù)字音頻接收器） |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 130K |
| 代理商： | AD1895 |
AD1895
REV. 0
–4–
AD1895 PIN LIST
Biphase-Mark Serial Inputs
Pin Name SSOP
I/O
Description
RX P
RX N
10
11
I
I
Positive differential biphase-mark serial digital audio receiver input. 20 mV hysteresis.
Negative differential biphase-mark serial digital audio receiver input. 20 mV hysteresis.
Decoded Channel Status Outputs
Pin Name SSOP
I/O
Description
CA
4
O
In consumer or professional mode, CA is the inverse of channel status bit 1, byte 0 (
C1
, audio/
non-audio). CA = 0 indicates non-audio, CA = 1 indicates audio. CA = 0 can be used to indicate
AC-3 encoded data.
In consumer mode, CB is the inverse of channel status bit 2, byte 0 (
C2
, copy/copyright). CB = 0
indicates copy permitted/copyright not asserted, CB = 1 indicates copy inhibited/copyright asserted.
In professional mode, CB is defined as the least significant bit of the two bits which encode the em-
phasis status of the audio material.
In consumer mode, CC is the inverse channel status bit 3, byte 0 (
C3
, pre-emphasis). CC = 0 indi-
cates that the audio material has been pre-emphasized, CC = 1 indicates that the audio material has
not been pre-emphasized.
In professional mode, CC is defined as the most significant bit of the two bits which encode the em-
phasis status of the audio material. T able I indicates the professional mode emphasis encoding.
CB
3
O
CC
2
O
T able I. Professional Mode E mphasis E ncoding
AD1895
Outputs
Byte 0
Channel Status Bits
Status
CC
CB
C2
C3
C4
1
1
0
0
0
Emphasis not indicated. Receiver defaults to no
emphasis with manual override enabled.
None. Receiver manual override disabled.
50
μ
s/15
μ
s. Receiver manual override disabled.
CCIT T J.17. Receiver manual override disabled.
1
0
0
0
1
0
1
1
1
0
1
1
0
0
1
CD
1
O
In consumer mode, CD indicates that the audio material is original over all category codes. T he
state of this bit is affected by both the generation status “L” bit (channel status bit 15, byte 1) and
the category code (channel status bits 8 through 14, byte 1), since the definition of the L bit is re-
versed for three of the category codes (001X X X X , 0111X X X , and 100X X X X ). CD = 0 indicates
that the audio material is original. CD = 1 indicates that the audio material is a copy (first genera-
tion or higher).
In professional mode, CD is the inverse of channel status bit 9, byte 1. CD provides some informa-
tion about channel mode. See below for additional details.
In consumer mode, CE indicates the so-called “ignorant” category codes of “general” (0000 000)
and “A/D converter without copyright information” (0110 000). CE = 0 indicates that the audio ma-
terial is encoded using an ignorant category code. CE = 1 indicates that the audio material is not en-
coded using an ignorant category code. T his status output can be used in conjunction with the CD
output to implement SCMS copy protection. See below for additional details.
In professional mode, CE indicates a Cyclic Redundancy Code (CRC) check error. CE = 0 indi-
cates that the calculated CRC value does not match the received CRC value. CE = 1 indicates that
the calculated CRC value does match the received CRC value. CE may be used to enable the dis-
play of the CA through CD states. If CE = 0, then CA through CD may be considered to be in er-
ror, and their display should not be updated.
CE
28
O
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD1895AYRS | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:192KHZ 8:1 STEREO ASYNC SAMPLE RATE CONV - Bulk 制造商:Analog Devices 功能描述:IC STEREO ASR CONVERTER |
| AD1895AYRSRL | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin SSOP T/R |
| AD1895AYRSZ | 功能描述:IC CONV SAMPLE RATE ASYNC 28SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| AD1895AYRSZRL | 功能描述:IC SAMP-RATEHP/CONV 24BIT 28SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| AD1895YRS | 制造商:Rochester Electronics LLC 功能描述:192KHZ 8:1 STEREO ASYNC S - Bulk |
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